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From: Yury Norov <ynorov@caviumnetworks.com>
To: <libc-alpha@sourceware.org>, <linux-kernel@vger.kernel.org>
Cc: <arnd@arndb.de>, <catalin.marinas@arm.com>,
	<marcus.shawcroft@arm.com>, <philb@gnu.org>,
	<davem@davemloft.net>, <szabolcs.nagy@arm.com>,
	<maxim.kuvyrkov@linaro.org>, <joseph@codesourcery.com>,
	<pinskia@gmail.com>, Yury Norov <ynorov@caviumnetworks.com>
Subject: [PATCH 23/27] [AARCH64] delouse input arguments in system functions
Date: Tue, 21 Jun 2016 08:07:07 +0300	[thread overview]
Message-ID: <1466485631-3532-25-git-send-email-ynorov@caviumnetworks.com> (raw)
In-Reply-To: <1466485631-3532-1-git-send-email-ynorov@caviumnetworks.com>

Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
---
 sysdeps/aarch64/__longjmp.S                   | 2 ++
 sysdeps/aarch64/dl-tlsdesc.S                  | 6 ++++++
 sysdeps/aarch64/memcmp.S                      | 3 +++
 sysdeps/aarch64/memcpy.S                      | 4 +++-
 sysdeps/aarch64/memmove.S                     | 3 +++
 sysdeps/aarch64/memset.S                      | 3 ++-
 sysdeps/aarch64/setjmp.S                      | 1 +
 sysdeps/aarch64/strchr.S                      | 1 +
 sysdeps/aarch64/strchrnul.S                   | 1 +
 sysdeps/aarch64/strcmp.S                      | 2 ++
 sysdeps/aarch64/strcpy.S                      | 2 ++
 sysdeps/aarch64/strlen.S                      | 2 ++
 sysdeps/aarch64/strncmp.S                     | 3 +++
 sysdeps/aarch64/strnlen.S                     | 3 +++
 sysdeps/aarch64/strrchr.S                     | 1 +
 sysdeps/aarch64/sysdep.h                      | 4 +++-
 sysdeps/unix/sysv/linux/aarch64/clone.S       | 7 +++++++
 sysdeps/unix/sysv/linux/aarch64/getcontext.S  | 1 +
 sysdeps/unix/sysv/linux/aarch64/setcontext.S  | 1 +
 sysdeps/unix/sysv/linux/aarch64/swapcontext.S | 1 +
 20 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/sysdeps/aarch64/__longjmp.S b/sysdeps/aarch64/__longjmp.S
index 58332be..0377715 100644
--- a/sysdeps/aarch64/__longjmp.S
+++ b/sysdeps/aarch64/__longjmp.S
@@ -46,6 +46,8 @@ ENTRY (__longjmp)
 	cfi_offset(d14, JB_D14<<3)
 	cfi_offset(d15, JB_D15<<3)
 
+	DELOUSE(0)
+
 	ldp	x19, x20, [x0, #JB_X19<<3]
 	ldp	x21, x22, [x0, #JB_X21<<3]
 	ldp	x23, x24, [x0, #JB_X23<<3]
diff --git a/sysdeps/aarch64/dl-tlsdesc.S b/sysdeps/aarch64/dl-tlsdesc.S
index fe8a17d..718dddf 100644
--- a/sysdeps/aarch64/dl-tlsdesc.S
+++ b/sysdeps/aarch64/dl-tlsdesc.S
@@ -74,6 +74,7 @@
 	cfi_startproc
 	.align 2
 _dl_tlsdesc_return:
+	DELOUSE(0)
 	ldr	PTR_REG (0), [x0, #PTR_SIZE]
 	RET
 	cfi_endproc
@@ -126,6 +127,7 @@ _dl_tlsdesc_undefweak:
 	   td->entry in _dl_tlsdesc_resolve_rela_fixup ensuring that the load
 	   from [x0,#8] here happens after the initialization of td->arg.  */
 	ldar	xzr, [x0]
+	DELOUSE(0)
 	ldr	PTR_REG (0), [x0, #PTR_SIZE]
 	mrs	x1, tpidr_el0
 	sub	PTR_REG (0), PTR_REG (0), PTR_REG (1)
@@ -174,6 +176,7 @@ _dl_tlsdesc_dynamic:
 	stp	x29, x30, [sp,#-(32+16*NSAVEXREGPAIRS)]!
 	cfi_adjust_cfa_offset (32+16*NSAVEXREGPAIRS)
 	mov	x29, sp
+	DELOUSE(0)
 
 	/* Save just enough registers to support fast path, if we fall
 	   into slow path we will save additional registers.  */
@@ -279,12 +282,14 @@ _dl_tlsdesc_resolve_rela:
 
 	SAVE_Q_REGISTERS
 
+	DELOUSE(3)
 	ldr	PTR_REG (1), [x3, #PTR_SIZE]
 	bl	_dl_tlsdesc_resolve_rela_fixup
 
 	RESTORE_Q_REGISTERS
 
 	ldr	x0, [sp, #32+16*8]
+	DELOUSE(0)
 	ldr	PTR_REG (1), [x0]
 	blr	x1
 
@@ -346,6 +351,7 @@ _dl_tlsdesc_resolve_hold:
 	RESTORE_Q_REGISTERS
 
 	ldr	x0, [sp, #32+16*9]
+	DELOUSE(0)
 	ldr	PTR_REG (1), [x0]
 	blr	x1
 
diff --git a/sysdeps/aarch64/memcmp.S b/sysdeps/aarch64/memcmp.S
index ae2d997..982aa02 100644
--- a/sysdeps/aarch64/memcmp.S
+++ b/sysdeps/aarch64/memcmp.S
@@ -47,6 +47,9 @@
 #define mask		x13
 
 ENTRY_ALIGN (memcmp, 6)
+	DELOUSE(0)
+	DELOUSE(1)
+	DELOUSE(2)
 	cbz	limit, L(ret0)
 	eor	tmp1, src1, src2
 	tst	tmp1, #7
diff --git a/sysdeps/aarch64/memcpy.S b/sysdeps/aarch64/memcpy.S
index 442f390..e0bbbf8 100644
--- a/sysdeps/aarch64/memcpy.S
+++ b/sysdeps/aarch64/memcpy.S
@@ -46,7 +46,9 @@
 #include <sysdep.h>
 
 ENTRY_ALIGN (memcpy, 6)
-
+	DELOUSE(0)
+	DELOUSE(1)
+	DELOUSE(2)
 	mov	dst, dstin
 	cmp	count, #64
 	b.ge	L(cpy_not_short)
diff --git a/sysdeps/aarch64/memmove.S b/sysdeps/aarch64/memmove.S
index dd91db0..3f72dea 100644
--- a/sysdeps/aarch64/memmove.S
+++ b/sysdeps/aarch64/memmove.S
@@ -46,6 +46,9 @@
 #define D_h	x14
 
 ENTRY_ALIGN (memmove, 6)
+	DELOUSE(0)
+	DELOUSE(1)
+	DELOUSE(2)
 
 	cmp	dstin, src
 	b.lo	L(downwards)
diff --git a/sysdeps/aarch64/memset.S b/sysdeps/aarch64/memset.S
index e49f4d6..e8eed9e 100644
--- a/sysdeps/aarch64/memset.S
+++ b/sysdeps/aarch64/memset.S
@@ -52,7 +52,8 @@
 #define tmp3w		w9
 
 ENTRY_ALIGN (__memset, 6)
-
+	DELOUSE(0)
+	DELOUSE(2)
 	mov	dst, dstin		/* Preserve return value.  */
 	ands	A_lw, val, #255
 #ifndef DONT_USE_DC
diff --git a/sysdeps/aarch64/setjmp.S b/sysdeps/aarch64/setjmp.S
index da83f19..d608660 100644
--- a/sysdeps/aarch64/setjmp.S
+++ b/sysdeps/aarch64/setjmp.S
@@ -33,6 +33,7 @@ END (_setjmp)
 libc_hidden_def (_setjmp)
 
 ENTRY (__sigsetjmp)
+	DELOUSE(0)
 
 1:
 	stp	x19, x20, [x0, #JB_X19<<3]
diff --git a/sysdeps/aarch64/strchr.S b/sysdeps/aarch64/strchr.S
index 5e3aecf..838384c 100644
--- a/sysdeps/aarch64/strchr.S
+++ b/sysdeps/aarch64/strchr.S
@@ -62,6 +62,7 @@
 /* Locals and temporaries.  */
 
 ENTRY (strchr)
+	DELOUSE(0)
 	mov	wtmp2, #0x0401
 	movk	wtmp2, #0x4010, lsl #16
 	dup	vrepchr.16b, chrin
diff --git a/sysdeps/aarch64/strchrnul.S b/sysdeps/aarch64/strchrnul.S
index a624c8d..b60df26 100644
--- a/sysdeps/aarch64/strchrnul.S
+++ b/sysdeps/aarch64/strchrnul.S
@@ -60,6 +60,7 @@
    identify exactly which byte is causing the termination.  */
 
 ENTRY (__strchrnul)
+	DELOUSE(0)
 	/* Magic constant 0x40100401 to allow us to identify which lane
 	   matches the termination condition.  */
 	mov	wtmp2, #0x0401
diff --git a/sysdeps/aarch64/strcmp.S b/sysdeps/aarch64/strcmp.S
index ba0ccb4..ccfe281 100644
--- a/sysdeps/aarch64/strcmp.S
+++ b/sysdeps/aarch64/strcmp.S
@@ -49,6 +49,8 @@
 	/* Start of performance-critical section  -- one 64B cache line.  */
 ENTRY_ALIGN(strcmp, 6)
 
+	DELOUSE(0)
+	DELOUSE(1)
 	eor	tmp1, src1, src2
 	mov	zeroones, #REP8_01
 	tst	tmp1, #7
diff --git a/sysdeps/aarch64/strcpy.S b/sysdeps/aarch64/strcpy.S
index 0694199..2a281b9 100644
--- a/sysdeps/aarch64/strcpy.S
+++ b/sysdeps/aarch64/strcpy.S
@@ -91,6 +91,8 @@
 #define MIN_PAGE_SIZE (1 << MIN_PAGE_P2)
 
 ENTRY_ALIGN (STRCPY, 6)
+	DELOUSE(0)
+	DELOUSE(1)
 	/* For moderately short strings, the fastest way to do the copy is to
 	   calculate the length of the string in the same way as strlen, then
 	   essentially do a memcpy of the result.  This avoids the need for
diff --git a/sysdeps/aarch64/strlen.S b/sysdeps/aarch64/strlen.S
index 9b4d1da..4734cfb 100644
--- a/sysdeps/aarch64/strlen.S
+++ b/sysdeps/aarch64/strlen.S
@@ -85,6 +85,8 @@
 	   boundary.  */
 
 ENTRY_ALIGN (strlen, 6)
+	DELOUSE(0)
+	DELOUSE(1)
 	and	tmp1, srcin, MIN_PAGE_SIZE - 1
 	mov	zeroones, REP8_01
 	cmp	tmp1, MIN_PAGE_SIZE - 16
diff --git a/sysdeps/aarch64/strncmp.S b/sysdeps/aarch64/strncmp.S
index f6a17fd..a372654 100644
--- a/sysdeps/aarch64/strncmp.S
+++ b/sysdeps/aarch64/strncmp.S
@@ -51,6 +51,9 @@
 #define endloop		x15
 
 ENTRY_ALIGN_AND_PAD (strncmp, 6, 7)
+	DELOUSE(0)
+	DELOUSE(1)
+	DELOUSE(2)
 	cbz	limit, L(ret0)
 	eor	tmp1, src1, src2
 	mov	zeroones, #REP8_01
diff --git a/sysdeps/aarch64/strnlen.S b/sysdeps/aarch64/strnlen.S
index 4cce45f..6f67221 100644
--- a/sysdeps/aarch64/strnlen.S
+++ b/sysdeps/aarch64/strnlen.S
@@ -50,6 +50,9 @@
 #define REP8_80 0x8080808080808080
 
 ENTRY_ALIGN_AND_PAD (__strnlen, 6, 9)
+	DELOUSE(0)
+	DELOUSE(1)
+	DELOUSE(2)
 	cbz	limit, L(hit_limit)
 	mov	zeroones, #REP8_01
 	bic	src, srcin, #15
diff --git a/sysdeps/aarch64/strrchr.S b/sysdeps/aarch64/strrchr.S
index 44c1917..bb85a60 100644
--- a/sysdeps/aarch64/strrchr.S
+++ b/sysdeps/aarch64/strrchr.S
@@ -68,6 +68,7 @@
    identify exactly which byte is causing the termination, and why.  */
 
 ENTRY(strrchr)
+	DELOUSE(0)
 	cbz	x1, L(null_search)
 	/* Magic constant 0x40100401 to allow us to identify which lane
 	   matches the requested byte.  Magic constant 0x80200802 used
diff --git a/sysdeps/aarch64/sysdep.h b/sysdeps/aarch64/sysdep.h
index f2ea821..c4ff5e7 100644
--- a/sysdeps/aarch64/sysdep.h
+++ b/sysdeps/aarch64/sysdep.h
@@ -25,10 +25,12 @@
 #define AARCH64_R(NAME)		R_AARCH64_ ## NAME
 #define PTR_REG(n)	x##n
 #define PTR_LOG_SIZE	3
-#else
+#define DELOUSE(n)
+#else	/* __ILP32__ */
 #define AARCH64_R(NAME)		R_AARCH64_P32_ ## NAME
 #define PTR_REG(n)	w##n
 #define PTR_LOG_SIZE	2
+#define DELOUSE(n)	mov     w##n, w##n
 #endif
 
 #define PTR_SIZE	(1<<PTR_LOG_SIZE)
diff --git a/sysdeps/unix/sysv/linux/aarch64/clone.S b/sysdeps/unix/sysv/linux/aarch64/clone.S
index 596fb9c..91a1d4c 100644
--- a/sysdeps/unix/sysv/linux/aarch64/clone.S
+++ b/sysdeps/unix/sysv/linux/aarch64/clone.S
@@ -39,6 +39,13 @@
  */
         .text
 ENTRY(__clone)
+	DELOUSE(0)
+	DELOUSE(1)
+	DELOUSE(2)
+	DELOUSE(3)
+	DELOUSE(4)
+	DELOUSE(5)
+	DELOUSE(6)
 	/* Save args for the child.  */
 	mov	x10, x0
 	mov	x11, x2
diff --git a/sysdeps/unix/sysv/linux/aarch64/getcontext.S b/sysdeps/unix/sysv/linux/aarch64/getcontext.S
index 71e526c..35ff326 100644
--- a/sysdeps/unix/sysv/linux/aarch64/getcontext.S
+++ b/sysdeps/unix/sysv/linux/aarch64/getcontext.S
@@ -30,6 +30,7 @@
 	.text
 
 ENTRY(__getcontext)
+	DELOUSE(0)
 	/* The saved context will return to the getcontext() call point
 	   with a return value of 0 */
 	str	xzr,	  [x0, oX0 +  0 * SZREG]
diff --git a/sysdeps/unix/sysv/linux/aarch64/setcontext.S b/sysdeps/unix/sysv/linux/aarch64/setcontext.S
index d17f8c8..7d854bd 100644
--- a/sysdeps/unix/sysv/linux/aarch64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/aarch64/setcontext.S
@@ -34,6 +34,7 @@
 	.text
 
 ENTRY (__setcontext)
+	DELOUSE(0)
 	/* Save a copy of UCP.  */
 	mov	x9, x0
 
diff --git a/sysdeps/unix/sysv/linux/aarch64/swapcontext.S b/sysdeps/unix/sysv/linux/aarch64/swapcontext.S
index c1a16f3..764fedc 100644
--- a/sysdeps/unix/sysv/linux/aarch64/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/aarch64/swapcontext.S
@@ -27,6 +27,7 @@
 
 	.text
 ENTRY(__swapcontext)
+	DELOUSE(0)
 	/* Set the value returned when swapcontext() returns in this context. */
 	str	xzr,      [x0, oX0 +  0 * SZREG]
 
-- 
2.7.4

  parent reply	other threads:[~2016-06-21  5:47 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-21  5:06 [RFC PATCH 00/27] ARM64: support ILP32 Yury Norov
2016-06-21  5:06 ` [PATCH 01/27] [AARCH64] Fix utmp struct for compatibility reasons Yury Norov
2016-06-21 10:14   ` Szabolcs Nagy
2016-06-23  4:35     ` Yury Norov
2016-06-23  5:07       ` Andrew Pinski
2016-06-23  7:32         ` Andreas Schwab
2016-06-23  7:36           ` Yury Norov
2016-06-23  7:37             ` Andrew Pinski
2016-06-24 11:33             ` Florian Weimer
2016-06-23  7:36           ` Andrew Pinski
2016-06-23  7:56             ` Andreas Schwab
2016-06-24 11:38               ` Florian Weimer
2016-06-25 23:26                 ` Andrew Pinski
2016-06-26  6:13                   ` Yury Norov
2016-06-21 10:24   ` Joseph Myers
2016-06-21  5:06 ` [PATCH] no wrappers Yury Norov
2016-06-21  6:04   ` Yury Norov
2016-06-21  5:06 ` [PATCH 02/27] [AARCH64] Add header guards to sysdep.h headers Yury Norov
2016-06-21 10:23   ` Szabolcs Nagy
2016-06-21  5:06 ` [PATCH 03/27] Add dynamic ILP32 AARCH64 relocations to elf.h Yury Norov
2016-06-21 10:26   ` Joseph Myers
2016-06-21  5:06 ` [PATCH 04/27] [AARCH64] Add PTR_REG, PTR_LOG_SIZE, and PTR_SIZE. Use it in LDST_PCREL and LDST_GLOBAL Yury Norov
2016-06-21  7:54   ` Andreas Schwab
2016-06-21  8:36     ` Yury Norov
2016-06-21  9:13     ` Andreas Schwab
2016-06-21  5:06 ` [PATCH 05/27] [AARCH64] Use PTR_REG in crti.S Yury Norov
2016-06-21 10:28   ` Joseph Myers
2016-06-22  6:02     ` Yury Norov
2016-06-22  7:45       ` Andreas Schwab
2016-06-22 10:37       ` Joseph Myers
2016-06-21  5:06 ` [PATCH 06/27] [AARCH64] Use PTR_REG/PTR_SIZE/PTR_SIZE_LOG in dl-tlsesc.S Yury Norov
2016-06-21  8:05   ` Andreas Schwab
2016-06-21  5:06 ` [PATCH 07/27] [AARCH64] Use PTR_* macros in dl-trampoline.S Yury Norov
2016-06-21  5:06 ` [PATCH 08/27] [AARCH64] Use PTR_* in start.S Yury Norov
2016-06-21  5:06 ` [PATCH 09/27] [AARCH64] Use PTR_REG in getcontext.S Yury Norov
2016-06-21  5:06 ` [PATCH 10/27] [AARCH64] Detect ILP32 in configure scripts Yury Norov
2016-06-21  8:01   ` Andreas Schwab
2016-06-21 10:30   ` Joseph Myers
2016-06-21  5:06 ` [PATCH 11/27] [AARCH64] Syscalls for ILP32 are passed always via 64bit values Yury Norov
2016-06-21  7:56   ` Andreas Schwab
2016-06-21 11:42     ` Zhangjian (Bamvor)
2016-06-21 11:54       ` Andreas Schwab
2016-06-21 11:57       ` Zhangjian (Bamvor)
2016-06-22 15:49   ` Catalin Marinas
2016-06-23  6:32     ` Yury Norov
2016-06-21  5:06 ` [PATCH 12/27] [AARCH64] Add ILP32 support to elf_machine_load_address Yury Norov
2016-06-21  5:06 ` [PATCH 13/27] [AARCH64] Set up wordsize for ILP32 Yury Norov
2016-06-21  5:06 ` [PATCH 14/27] [AARCH64] Add ILP32 to makefiles Yury Norov
2016-06-21  5:06 ` [PATCH 15/27] [AARCH64] Add support to ldconfig for ILP32 and libilp32 Yury Norov
2016-06-21  7:59   ` Andreas Schwab
2016-06-21  5:07 ` [PATCH 16/27] [AARCH64] Add ILP32 ld.so to the known interpreter names Yury Norov
2016-06-21  5:07 ` [PATCH 17/27] [AARCH64] Add ldd-rewrite.sed so that ilp32 ld.so can be found Yury Norov
2016-06-21  5:07 ` [PATCH 18/27] [AARCH64] Add kernel_sigaction.h for AARCH64 ILP32 Yury Norov
2016-06-21  7:45   ` Andreas Schwab
2016-06-21  7:52     ` Zhangjian (Bamvor)
2016-06-21  5:07 ` [PATCH 19/27] [AARCH64] Add typesizes.h for ILP32 Yury Norov
2016-06-21  7:58   ` Andreas Schwab
2016-06-21 11:59     ` Zhangjian (Bamvor)
2016-06-23  4:54       ` Yury Norov
2016-06-21  5:07 ` [PATCH 20/27] [AARCH64] Make lp64 and ilp32 directories Yury Norov
2016-06-21  8:12   ` Andreas Schwab
2016-06-21 10:44   ` Joseph Myers
2016-06-27  7:56   ` Andreas Schwab
2016-06-27  8:03     ` Arnd Bergmann
2016-06-21  5:07 ` [PATCH 21/27] [AARCH64] ILP32: introduce syscalls that pass off_t Yury Norov
2016-06-21 10:35   ` Joseph Myers
2016-06-23  5:57     ` Yury Norov
2016-06-23 11:57       ` Joseph Myers
2016-06-21  5:07 ` [PATCH 22/27] [AARCH64] ILP32: support stat syscall family Yury Norov
2016-06-21  8:38   ` Andreas Schwab
2016-06-21 10:46   ` Joseph Myers
2016-06-27  7:51   ` Andreas Schwab
2016-06-21  5:07 ` Yury Norov [this message]
2016-06-21  8:08   ` [PATCH 23/27] [AARCH64] delouse input arguments in system functions Andreas Schwab
2016-06-21 10:36   ` Joseph Myers
2016-06-21 15:42     ` Arnd Bergmann
2016-06-21 16:37       ` Andrew Pinski
2016-06-21  5:07 ` [PATCH 24/27] Add support for AT_ARM64_MIDR Yury Norov
2016-06-21  8:09   ` Andreas Schwab
2016-06-21  5:07 ` [PATCH 25/27] [AARCH64] Fix ILP32 warning Yury Norov
2016-06-21 10:44   ` Joseph Myers
2016-06-21  5:07 ` [PATCH 26/27] [AARCH64] Change type of __align to long long Yury Norov
2016-06-21  8:10   ` Andreas Schwab
2016-06-21 10:57   ` Zhangjian (Bamvor)
2016-07-06 10:36     ` Andreas Schwab
2016-06-21  5:07 ` [PATCH 27/27] Fix PTRDIFF_MIN/PTRDIFF_MIN and PTRDIFF_MIN for ILP32 Yury Norov
2016-06-21 10:32   ` Joseph Myers
2016-06-21 10:23 ` [RFC PATCH 00/27] ARM64: support ILP32 Joseph Myers
2016-06-21 12:06 ` Zhangjian (Bamvor)
2016-06-22  2:04   ` Yury Norov
2016-06-28 15:26   ` Yury Norov
2016-06-21 15:10 ` Szabolcs Nagy

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